clumsy-graphics/package/convertAnimationMp4ToGif/convertAnimationMp4ToGif.js

a tool for rapidly developing animations where frames are described using svg elements à la react 🙃

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.convertAnimationMp4ToGif = void 0;
const child_process_1 = __importDefault(require("child_process"));
function convertAnimationMp4ToGif(api) {
    const { animationMp4SourcePath, animationGifOutputPath, gifAspectRatioWidth, } = api;
    // https://superuser.com/questions/556029/how-do-i-convert-a-video-to-gif-using-ffmpeg-with-reasonable-quality
    const aspectRatioScaleOption = gifAspectRatioWidth
        ? `scale=${gifAspectRatioWidth}:-1:flags=lanczos,`
        : '';
    child_process_1.default.execSync(`
    ffmpeg \
      -y \
      -i ${animationMp4SourcePath} \
      -vf "${aspectRatioScaleOption}split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" \
      -loop 0 \
      ${animationGifOutputPath}
  `);
}
exports.convertAnimationMp4ToGif = convertAnimationMp4ToGif;